Metal Max 2 Kai (Japan) flashing text

Question

Metal Max 2 Kai (Japan) flashing text

benderscruffy opened this issue 4 years ago · 4 comments

benderscruffy commented 4 years ago

the text keeps flashing during the game

Answer 1 · 2020-05-14T16:13:15.000Z

Can confirm.

Answer 2 · 2020-05-14T23:20:55.000Z

Thank you for testing so many games! This one should work fine now.

Answer 3 · 2020-11-21T15:00:53.000Z

The fix for this game actually seems to be incorrect and made H-blank IRQs fire too early.
This game is extremely tight on timing. It polls the scanline counter for one specific value/scanline and if the H-blank IRQ is just a bit too late that scanline will already have passed. Needs more investigation. Maybe also related to general IRQ delay?

Answer 4 · 2022-07-10T22:37:30.000Z

The flickering text issue is now finally resolved for good (the fix 100% matches hardware timing).
But there still are a few minor graphical issues left that are unrelated to the original bug.
I've created a new issue here, to track these:
#229